Tooth for excavating buckets or shovels.



A. H. EXTON 6 J. M. SHEBRERD. TOOTH FOR EXOAVATING BUOKETS 0R SHOVBLS.

APPLICATION FILED JUHE 28,1908.'

" Patented June 1, 1909.

UNITED STATES PATENT OFFICE.

ALFRED H. EXTON, OF HIGHBBIDGE, NEW JERSEY,'AND JOHN M. SHERRERD, OF EASTON, PENNSYLVANIA, ASSIGNORS TO TAYLOR IRON & STEEL COMPANY, OF HIGHBRIDGE,

NEW JERSEY, A CORPORATION OF NEW JERSEY.

rootrrr roe EXGAVATING BUOKETS on sHovELs.

To all whom it may concern:

Be it knownthat we, ALFRED H. Ex'ron,

, a citizen ofthe United States, residing at proved manner, and which connection is of such construction that it may be utilized with any form ofpoint, although it is particularly Well adapted for a reversible point.

A further object of the invention is the provision an improved reversible point.

The present invention is an improvement in part 1 on that shown and described in Letters Patent to Thomas .No. 887,984, in that by means of this improved connection of the point with the body of the tooth the necessity of extending the ends of the jaws to the rear of and past the end walls of therecess which engages the nose of the bucket lip n order tosecure a relatively'long engagement between the point and nose of the tooth for the reception of clamping means is i I avoided, while at the same time a somewhat more direct and therefore iore rigid connection is obtained, as the clamping means can pass through the point and nose at a very much less angle than ispossible in said patented device. v

In the drawings accompanying and forming part oithisspecification, Figure 1 is'a side view of this improved twoart tooth with apart of the tooth body bro on away; Fig. 2 is'a top viewof the toothbody partly broken away Fig. 3 is an end view thereof looking toward the'right; Fig. 4 is aside viewthereof also partly broken away; Fi 5 is a top view of the point; Fig. 6 is a si e view thereof; and Fig. .7 is a rear end view of such point.

Similar characters of reference indicate correspon ding (parts throughout the different figures of the rawings.

This improved two-part tooth comprises a I Specification of Letters Fatent. Application filed June 26, 1908. Serial No. 189/300.

Patented June 1, 19179.

tooth or body portion 2 having aforwardly' extending tapered nose 3 and a detachable and reversib a pair of shanks or jaws 5 and 6, one of which, as for instance the upper, is usually longer than the other. the tooth is clamped to the edge or lip of the bucket, which fits within the recess 7 and is usually engaged by the forward or end wall 9 of the recess, so that thrust on the tooth is bodiment, as parallel and extending forwardly and terminating adjacent to the rear of the s aced projections 12, the ends 17 of such si e walls preferably being curved I V e point 4. The toothbody isrecessed, inth'e embodiment shown, to form By means of these shanks or concaved to receive the inner ends of the.

point jaws. lh'e tooth body is provided and communicatin cesses 13 and 14 tor the clamping means.

with an opening 18' extending therethroughwith both of said re-' reception of the The detachable point 4, which in the pres 'to'the tooth body when the parts are assembled. This (point is made asaninte ral structure an the end 22 of the web'whic is toward the rear of the point may conform,

if desired, to the shape of the end wall of the recess between the projections 12 of the tooth, but in the present form of two-part tooth this is not essential since the ends of the point jaws 19 and 20 conform to the shape of the ends 17 .of the side walls 15 and 16, said en'ds'17 thus forming shoulders or 65 imparted directly to the bucket lip andnot '1 through the medium of the clamping means 19 and 20 and of the Web conneoting one 0 which no ts or rivets nee-o.

point jaws engage. f 9f 0 time, it isohvious that theinner ends of the point jaws could he concave while the ends 17 couid be oonvex instead of as shown in the present instsiice.

In practice the Web of the point may be provided with an opening 23 to form s psssage therethrough so that any accumulation of dirt or rust which may interfere with the proper fitting of the point on its tooth may hc-removed.

Extending rearwardly' of'the point jaws such jaws, and shown one forming art of each jaw, is a pair of parallel ears or lugs 30 and 31 which projeot into and may snugly fit, if preferred, the recesses 13 and 14, these being provided with openings 33, 34 for the jessztge of clamping means, such as e or bolt, e bolt 32 being shown in the present instance.

From the foregoing it will he ohserved that the tooth body is psovided s. pits unity of recesses, one iocsted in the tapered nose itself-While 2 pair thereof extend rear- Wsrdly of such nose recess, so thet- Whiie the Web of the'p'qint fits within the recess of the tapered nose the resrwardiy projecting lugs thereof stso fit into the recesses which extend resrwsrdiy of such nose recess, so that when the point end tooth body are eismped together by means of s bolt or rivet throu h such-1n s and the tooth body, only he used in. the present construction, they are very rigidly held together, movement of the point. in any direction being prevented, as these parts are seoureiy interlocked one with the other. In the present improvement, when the, point becomes Worn at the 'epex thereof it may be reversed. Thus the life of the point is very materially prolonged, since it is oopehie of any number of reversals until Worn sway.

It will he observed that in the present embodiment the eonneeted jssvs of the point ere instilled, to the epex of the point, While the reerwsrdly extending lugs by moons of which the point is bolteil'to the tooth body are, as hei'einheiore stated, persdiei z in other WGXQiS, these logs are not shown herein es extending in the some anguier plane as the Wedge-shaped point or the jaws thereof, in consequence of which. the bottom wells of the recesses in the tooth body? may he made pareliei snd so enable the recesses to have greater depth. and thus po mit the oismping hoitjto he loested entirety Within the topend oottom surfaces of the tooth body Without in soy t-Jey we mg the structure of the aonit or the nose dy. By locating the has s or the hoist Wlth the top and hottomsurfsces of the tooth body it Will he observed that such heads are pro- .of the recess of 3 ebutments with which the inner ends of the 8 tested hv offsets or shoulders 35 of the point from receiving the full force of impact from a roe: or other material being exeovated.

claim as our invention:

1. A tooth of the class described comprising a body having s-tspered and recessed nose and lug-receivingrecesses at its top and bottom; a detachable noint having a pair of weh oonnected j ews tne web projecting into the recess of the nose and also having a pair of lugs resrwardiy of seid Web and projecting into said lug-receiving recesses of the body,

end oism ing means projecting through said lugs and ody.

g A tooth of the-class described comprising e1 bodyjheving e tapered and recessed nose and higqooeiving recesses at its top and hot-tom, detsolishie and reversible point homing e psii'of Weh-sonnected jaws the We Promoting into the recess of the nose of logs reorvrei'diy of .12 into said iug-reeeivend clamping means L lugs and body. 7 ed hind? forwardly er;- tcnding ndprov" ieo rear thereof, at its top and bottom, with :2, pair of recesses.

" it A tootribody having forwardly e2;-

tendiog h of said hi 1 with pair recesses.

5. A. tooth ".oooy having tending tapered s s forwardly e3:- sfoo 1'6CC"J nose and Z18Y- i such recess, its top and bottom, psi oi l'fiCnopening thzoughsnoh hotly commit nesting with. said recesses.

6. A tooth. body a forwardly extendin time/red and nose and hsving at the reel oi',snch recess, its top and bottom, a. fair oi IBPB-t end an opening through sue-n body Ci vuniceting with said recesses, of ihe ring pereiieily locetsd side welis.

7. A toothbody having a forwardly .extending tapers and recessed. nose and he"- ing at the rear of such i'eoess, at its top ed bottom a psi!" of Yes en'opsmng throes 0677 esteem ..niesting with said heiress: A. *1 sold i'eoes es having psrelieiij, formu i and wells oi which to the rest d tape 4. body he? 1g 21. forwsrdiy eic- "te'pered nose terminating at the res-1' thereof; 1 ir of psrsilsiiy loosted re wssss is of xvi. h i ted at an 'I t from the of inohnation of said-tapered nose.

:9. :i poi i jay pro or ears extending resiwe of iess width than the jev 10. A detachable was reversible point tending parallelly located lugs.

' tendinglugsprojecting into said body recesses and likewise located at an angle different comprising a pair of webconnected, jaws provided with a pair of lugs or eai s'extending rearwardly of such web, each of less width thanthc jaws. i 4

ill. A detachable point having a pair of jaws providedwith a pair of reelrwardly ex.-

12. A detachablepoint comprising a pair ol inclined jaws provided with a pair of parallelly located lugs.

13. A detachable point comprising a pair of web-connected inclined provided with a pair of parallellylocated lugs.

14. A detachable wedge-shaped point l1 aving inclined outer faces and provided with a air of, rearwardly extending boltrecciving ugs located at an angle diflerent from the angle of inclination of said outer faces.

15. -A detachable an d reversible wedgeshaped point having inclined outer faces and provided with a pair of rearwardly extending bOlFIQCGlVlHg lugs located. at an angle different from the angleol inclination of said outer faces. t

16. A detachable wedge-shaped point having a pair of bolt-receiving rearwardly extending: lugs located at an angle different from the angle of inclination 0t said point.

17 A tooth of the class described comprising a body having a forwardly extending tapered nose, and provided with lug-receiving recesses, a detachable wedge shaped point'having a pair of rearwardly extending lugs )rojecting into said recesses of the bodyand located at an angle different from the angle of inclination of said point, and means for clamping said point and body together.

18. A teeth of the class describe/d 00111- prising a body having a-tapered and recessed nose and a pair of lug-receiving recesses the bottom walls of which. are located at an angle different from the angle of inclination of said tapered nose, a detachable wedge shaped point haying a pair of rearwardly exfroin the angle o finclination of said poi.nt,' and means for clamping said point and body together. t I

19. A tooth of the classdescribed coinprising body having a tapered and rcccssed nose and a pair of lug-receiving recesses the bottoinwalls of wlucharc located at an angle dilljere'nt from. the angle of inclination. of

said tapered nose, a detacl'rable and reversible point having a pair of rearwardly extendinn lugs projecting into said body recesses and likewise located at an angle different from the angle of inclination of said point,

and means for clamping said point'and body together.

20. A tooth of the class described-compria ing; a body having a forwardly extending tapered and recessed. nose and a air of lugreceiving recesses the bottom. wa s of which are located at, an angle of inclination ditlcrent from that of the tapered nose, a detachable wedge-shaped point comprising a pair of webwonnected jaws having a pair of rearwardly extending lugs located at an angle different from the angle of inclination of said oint, and means extending through said ugs and recessed body for clamping the same together.

21. A tooth of the class described. comprisinc; a body having a forwardly extending tapered and recessed nose and a air of lugreceiving recesses the bottom wal s of which are located at an angle different from-the angle of inclination of the tapered nose, a (i6? tachable and reversible wedge-shaped point comprising a pair of web connectcd jaws having a pair of rearwardly extending lugs also located at an angle diilerent frorn the angle of inclination of said point, and means extending through said lugs and recessed body for clamping the same together.

22. A tooth of the class described comprising a body having a forwardly extending wedge-shaped and recessed nose and provided with a pair of lug-receiving recesses the top and bottom walls of which are located at an angle diil'erent from the angle of inclination of said wcdgeshaped nose and the side walls of which recesses are parallel, a detachable wedge-sha ed and reversible point having a pair of we -connected jaws provided with a pair of parallelly located lugs-projecting; into the lug-receiving recesses of the body, said lugs being located at anflangle different from the angle of inclination of said wedge-shaped point, and clamping means extending tl iroug'h said lugs and recessed'bodyfor clamping the point and body together.

ALFRED H. EXTON.

JGHN M. iiiliEltltElili' i/Vitnesses: I J

HARRY A. HUNT, A. F. NllIRRAY.

let 

